橡胶-玻璃接触界面间液体渗入特性及力学驱动机制

逄明华; 刘小君; 焦云龙; 刘焜

doi:10.21656/1000-0887.380053

橡胶-玻璃接触界面间液体渗入特性及力学驱动机制

doi: 10.21656/1000-0887.380053

合肥工业大学摩擦学研究所, 合肥 230009

基金项目: 国家自然科学基金（51375132）

详细信息

作者简介:
逄明华（1977—），男，博士生(E-mail: pangminghua909@163.com)；刘焜（1963—），男，教授，博士生导师(通讯作者. E-mail: liukun@hfut.edu.cn).

中图分类号: TH117
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出版历程
- 收稿日期: 2017-03-09
- 修回日期: 2017-03-17
- 刊出日期: 2018-02-15

Fluid Infiltration Characteristics and Driving Mechanism in the Rubber-Glass Contact Interface

Institute of Tribology, Hefei University of Technology, Hefei 230009, P.R.China

Funds: The National Natural Science Foundation of China（51375132）

摘要

摘要: 针对橡胶接触界面间液体渗入特性及力学驱动机制，采用自建原位观测仪，得到橡胶-玻璃接触界面间液体（丙酮与水混合液，体积比1∶1）渗入过程.利用自编MATLAB程序及图像软件，得出橡胶-玻璃接触界面间压力与真实接触面积比关系曲线、界面内液体渗入特性及固-液界面润湿性对界面内液体渗入面积比的影响.研究表明：对于橡胶-玻璃接触界面，压力与真实接触面积比呈幂函数规律变化，液体在接触界面内的渗入路径大多出现在接触面积比较大区域；驱动液体铺展的毛细管力与阻碍液体铺展的固-液黏性阻力之间的平衡关系，是界面液体渗入特性的主要力学机制，也是决定液体铺展速度的因素.另外，实验结果表明，液体渗入面积比随固-液界面润湿性的增强而增大.该研究为橡胶接触界面的摩擦、润滑及密封机理研究奠定了一定的理论基础.
- 原位观测 /
- 橡胶界面 /
- 接触面积比 /
- 渗入特性 /
- 润湿性
Abstract: To clarify the mechanism of fluid infiltration in the rubber-glass contact interface, an experimental setup of in situ observation instrument was established. Then, the fluid infiltration process in the rubber-glass contact interface was measured. The influences of the interfacial contact characteristics and the solid-liquid interface wettability on the fluid infiltration area ratio, the path and the distribution pattern were analyzed with a MATLAB program and an image processing software. Analysis results show that, all the fluid infiltration area ratio, the path and the distribution pattern in the contact interface are influenced by the capillary force and the real contact area ratio. First, the actual contact area ratio nonlinearly increases in the form of power functions with the interfacial contact pressure. Second, the fluid infiltration path in the contact interface tends to form where the actual contact area ratio is high. The main driving mechanism of the liquid infiltration path and the velocity in the contact interface is the equilibrium relation between the capillary force and the viscous resistance. Moreover, the solid-liquid interfacial wettability is one of the evaluation indexes for the fluid infiltration area ratio in the contact interface. Reasonable regulation and control of the wettability of the solid-liquid interface can improve the infiltration effect of fluid. The research work provides an innovative approach and obtains an essential understanding of the effects of fluid infiltration on friction, lubrication and seal in the rubber contact interface.
- in situ observation /
- rubber contact interface /
- contact area ratio /
- infiltration characteristic /
- wettability

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参考文献(21)

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橡胶-玻璃接触界面间液体渗入特性及力学驱动机制

doi: 10.21656/1000-0887.380053

作者简介:
逄明华（1977—），男，博士生(E-mail: pangminghua909@163.com)；刘焜（1963—），男，教授，博士生导师(通讯作者. E-mail: liukun@hfut.edu.cn).

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Fluid Infiltration Characteristics and Driving Mechanism in the Rubber-Glass Contact Interface

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留言板

橡胶-玻璃接触界面间液体渗入特性及力学驱动机制

doi: 10.21656/1000-0887.380053

作者简介: 逄明华（1977—），男，博士生(E-mail: pangminghua909@163.com)；刘焜（1963—），男，教授，博士生导师(通讯作者. E-mail: liukun@hfut.edu.cn).

计量

出版历程

Fluid Infiltration Characteristics and Driving Mechanism in the Rubber-Glass Contact Interface

计量

出版历程

目录

作者简介:
逄明华（1977—），男，博士生(E-mail: pangminghua909@163.com)；刘焜（1963—），男，教授，博士生导师(通讯作者. E-mail: liukun@hfut.edu.cn).